Gas-stove.



H. C. MAUL.

GAS STOVE.

APPLIOATION FILED J1u1.1s,1912A 1089,422, Patented Mar. 10, 1914J HENRY C. MAUL,

COMPANY, oF DETROIT, MICHIGAN,

0F DETROIT, MICHIGAN, ASSIGNOR TO THE MICHIGAN STOVE A. CORPORATION OF MICHIGAN.

GAS-STOVE.

Specification of Letters Patent.

Patented Mar. 10,1914.

Application filed January 15, 1912. Serial No. 671,154.

To all whom it may concern Be it known that I, HENRY C. MAUL, a citizen of the United States, residing at Detroit, in the county of Wayne, State of Michigan, have invented certain new and useful Improvements in Gas-Stoves; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appel-talus to make and use the same, reference being had to the accompanying drawings, and to the'characters of referencermarked thereon, which form a part of this specification. f

This invention relates to gas stoves and consists in the construction and arrangement of parts hereinafter more fully set forth and 'pointed out particularly in the claim.

The objects of the invention are to produce a gas stove having a closed cooking top wherein provision is made for directing the flame from the burners directly against the under face of said top in a manner to heat the vwhole top sufliciently to enable articles to be cooked at any point thereon.

A further ob]ect is to provide for supplying atmospheric air to the burners in such quantity as to fully support combustion, avoiding the odor incident to the escape of unburned gas.

A further object is to provide for placing the burners comparatively close to the under face of the closed top in order that the full benefit of the heat from the burners may be utilized, provision being made for preventing the smothering of the flame due to the crowding away of the air therefrom by the accumulated products of combustion.

A further object is to provide for creating a strong flow of the products of combustion along the under face of the closed top away from the burners, and a consequent inflow of air into the front of the stove not alone throng burners but around said burners as well, so that the combustion of the gas may be fully sustained.

A' further object is to provide for heating the whole cooking surface of the stove top by a single row of burners placed along one side of the stove in a burner chamber below said top.

The above objects. are attained by the h the mixers of the structure illustrated in the accompanying drawings, in which:-

Figure 1 is a vertical sectional View through a stove embodying my invention. Fig. 2 is a plan view of the burners Aand the gas supply pipe connected therewith, the stove top being indicated by dotted lines. Fig. 3 is a longitudinal section through one of the burners, as on line 3-3 of Fig. 2.

Referring to the characters of reference, l vdesignates astove having a closed top 2 provided with the usual removable lids 3. Located at the front of the stove is a row of burners @of the Bunsen type, into the mixers 5 of which the gas is introduced from a main supply pipe 6 through nipples 7 which extend into the mixing tubes of the burners in a manner well understood in the art. 'The combustible mixture is discharged from the ends of the burners through a plurality of nozzles 8 arranged in horizontal alinement and so dsposed as to stand at a considerable angle with respect to a perpendicular, the arrangement being such as to cause the flame from said burner nozzles to imp'inge obliquely against the under face of the closed top of the stove. The nozzles 8 of the burners are formed to project from a plate 9 (see Fig. 3) which is detachably mounted upon the inclined forward end of the mixing tube, there being, as shown in Fig. 3, a wire screen 12a introduced between said plate and said tube to prevent the flame burning back into the mixing tube. A

The burners are supported upon a bracket 10 which lcrosses thereunder and is attached at its ends to a stove frame.

It has been found that where the burnersV have been so disposed as to project the flame therefrom vertically against the under face of the closed top the products of combustion did not leave the vicinity of the flame, thereby crowding out the atmospheric air and causing the flame to smother and throw 0H an offensive odor from the unconsumed gas. lt has also been found that to obtain perfeet combustion a constant supply of atmospheric air to the jets of flame issuing from the orifices of the burner is necessary. By the arrangement herein shown the flame froiii'the burners is caused to impinge with some force against the under' face of the stove top at an angle thereto, and the products of combustion to pass with considerable rapidity to the rear exit or discharging flue 11 in cont-act with the under side of said top, whereby the Whole top of the stove becomes heated in substantially the same manner as if a coal fire were used, while the artificial circulation created by the products of combustion in passing to the exit opening causes a strong inflow of air through the open front of the stove, said air reaching the burners in such quantity as to lfully support combustion and obviate the presence of any obnoxious odor due to unburned gas. By causing the flame from the burners to impinge obliquely against the under face of the stove top the burners may be located relatively close to the top without danger of smothering the ame because of the induced rapid travel of the products of combustion away from the burners and the quantity of atmospheric air which is drawn to the burners as abover described. Were the flame from the burners directed vertically against the under face of the stove top the burners would have to be lowered to a considerable extent in order to provide suiiicient space for the escape of the products of combustion without exerting a smothering effect upon 'the llame. In such an arrangement much of the heat of. the llame must necessarily be sacriiced, thereby greatly impairing the etliciency of the stove.

The result of the arrangement herein shown and described is, that, with the consumption of a given amount of gas a maximum eiciency is attained, while either natural or artilicial gas can be used without the annoyance commonly experienced because of the escape of disagreeable odors.

Below theburners, and parallel with the top of the stove, is supported a broiler plate 12, upon which meats may be broiled by the same fire that is employed in cooking, the arrangement being such that the sheet ot' flame from the burners which passes rearwardly to the exit opening is parallel with and in such proximity to said plate as to elliectively broil anything placed thereon.

Having ,thusfully set forth my invention, what I claim as new and desire to secure by Letters Patent, is

A plurality of burners each having axially and horizontally arranged an air mixer and a mixing chamber, each of said burners having a series of nozzles located at right angles to the axes of the burners, the axis of each nozzle being in a vertical plane and directed upwardly from the horizontal plane of the mixing chambers.

In testimony whereof, I sign this specification in the presence ot' two witnesses.

HENRY C. MAUL. Witnesses: y

J. OTTO BAENZIGER, M. E. BRoEsAMLE. 

